Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
c16e88644c
This PR adds `Runtime.hold`, which ensures its argument remains alive until the callsite by holding a reference to it. This can be useful for unsafe code (such as an FFI) that relies on a Lean object not being freed until after some point in the program. It is implemented via a `static inline` function in `lean.h` so that C will optimize away the call. --------- Co-authored-by: Henrik Böving <hargonix@gmail.com> |
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